Fake Cartier Watch Serial Number. The movement inside of an authentic watch fits perfectly and you will find the wires nicely coded to keep them from eroding. Cartier watches are all professionally engraved with a serial number on the side.
If anything seems off then it is better to walk away. On an authentic cartier the sn will be etched on to the back cover. Both numbers are used to identify the cartier model.
Look up the model number in a reference book of cartier watches available at your local library a bookstore or online.
Also the engraving is perfect. This is the model number. Check the side of the face of the watch for an engraved serial number. Find the four digit number on the back of the watch case.